The Bose-Einstein condensates were theoretically predicted in 1924–25. However, the experimental observation was reported in 1995, laureating their discoverers with the 2001 Nobel prize. The year of 2015 celebrates the ninetieth anniversary of the theoretical prediction and the twentieth anniversary of its experimental realization. The Bose-Einstein condensates have been used in different contexts, from condensed matter to astrophysics. This work is dedicated to provide a naïve interpretation of the condensation process. We will also model modern traps which imprison the particles of a weak interacting gas of bosons to form the condensates.